Development of secondary pine forests after pine wilt disease in western Japan

Fujihara, Michiro

doi:10.2307/3236384

Cited by 41 publications

(41 citation statements)

References 18 publications

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“…Schima exhibited the highest mean sensitivity, suggesting that its ring widths had high inter-annual variability and was sensitive to yearly environmental changes. The first-order autocorrelations ranged from 0.530 to 0.769 for the four chronologies, indicating that the chronologies contained considerable low-frequency variance related with growth condition and tree physiology (Fritts 1976). In common period analyses , the expressed population signal ranged from 0.741 to 0.872 for the four chronologies, indicating that these four species were useful for dendroecological analyses.…”

Section: Tree-ring Characteristics Of the Eight Tree Speciesmentioning

confidence: 98%

“…Standard tree-ring chronology of each species was developed from the cross-dated ring-width series using the program ARSTAN (Cook 1985). Negative exponential curves or linear regression lines of negative slope or horizontal lines were used to remove the age-related growth trends (Fritts 1976). Tree-ring samples of less than 20 years old were not included into chronology development, and the early section of each chronology with less than five sample replications was truncated.…”

Section: Tree-ring Analysismentioning

confidence: 99%

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Age and radial growth pattern of four tree species in a subtropical forest of China

Xing

Zhang

Baker

2011

Trees

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Subtropical forests are usually composed of many tree species. Knowledge of the age and radial growth variation of the dominant tree species is useful for understanding forest dynamics and community structure and function. The aims of this study are to explore whether there are identifiable annual growth rings in the main tree species and to examine the growth characteristics within and among the species in Mount Gutian subtropical forest of China. The results showed that four out of eight tree species from which samples were collected had visible and cross-datable rings. There were no stable relationships between the age and diameter for these subtropical trees. Significant differences existed in radial growth rate within and among the four species, suggesting a high spatial heterogeneity in the mixed-species subtropical forest. The common pattern in age distribution of multiple species suggests a stand-wide disturbance occurring around the 1960s. It is interesting to note that the growth rate at the same age intervals was different for trees younger than 40 years of age and older than 40 years of age, suggesting a change in climate or forest structure in the two time periods. The results obtained from this study help understand the growth dynamics in other subtropical forests having these tree species.

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Section: Tree-ring Characteristics Of the Eight Tree Speciesmentioning

confidence: 98%

Section: Tree-ring Analysismentioning

confidence: 99%

Age and radial growth pattern of four tree species in a subtropical forest of China

Xing

Zhang

Baker

2011

Trees

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“…Pine wilt disease (PWD) is caused by epidemic attacks of the nematode Bursaphelenchus xylophilus, a species that is vectored by a beetle (Morimoto and Iwasaki, 1972), and has become a problem that affects the vegetation of pine forests and landscapes (Fujihara, 1995). In addition to their role in soil properties, an understanding of the dynamics of soil nutrients following forest disturbances is crucial for the development of timed strategies for the management of damaged lands.…”

Section: Introductionmentioning

confidence: 99%

Seasonal dynamics of dissolved organic carbon, nitrogen and other nutrients in soil of Pinus massoniana stands after pine wilt disease disturbance

Liu

Wang

et al. 2014

J. Soil Sci. Plant Nutr.

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To understand changes in soil nutrients in Pinus massoniana forests affected by pine wilt disease (PWD), we examined the seasonal variation in dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and soil nutrients in Hefei, East China. The results showed a considerable decline in the population density and basal area in both highly disturbed (HD) and moderately disturbed (MD) forest stands and an increase in dead pine trees, causing pronounced changes in the stand structure and soil nutrient status. The concentrations of DOC and NO 3 --N were significantly (p < 0.05) higher in every season in the disturbed forests compared to the undisturbed (UD) forest stand. However, during spring and summer, the variation in the DON and NH 4 + -N values was significantly (p < 0.05) lower in the HD forest stand than in the UD stand; total N concentrations were higher in the disturbed forests in every season. During spring and autumn, the variation in total P values was significantly (p < 0.05) lower in the MD forest stand than in the UD stand, whereas the total P values were significantly (p < 0.05) lower in every season in the HD stand than in the UD stand. In this study, disturbance resulted in a considerable increase in DOC, N and NO 3 --N when compared to the UD stand and a pronounced increase in soil nitrate in the HD stand, which may lead to soil acidification, thereby increasing the possibility of soil nutrient leaching.

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“…The stand dynamics of the pine forests after the dieback have been studied with the discussion on the characteristics of establishment and growth by tree species (Toyohara et al 1986;Toyohara and Fujihara 1998;Da and Ohsawa 1992;Fujihara 1995Fujihara , 1996. In these damaged forests, selective cutting of infected and dead pine trees has often been performed to protect live pine trees from the disease.…”

Section: Introductionmentioning

confidence: 98%

Comparison of stand dynamics after dieback caused by pine wilt disease among pine forests with different management regimes in western Japan

Sakamoto

Miki

Tsuzuki

et al. 2003

Journal of Forest Research

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In pine forests damaged by pine wilt disease, in western Japan, the effect of protection regimes of pine trees on the stand dynamics were examined in the following four stands: (1) lightly damaged stand (age 30-40 years) with no procedure in operation for protecting pine trees; (2) severely damaged stand (age 30-40 years) with no procedure in place for protecting pine trees; (3) severely damaged stand (age 50 years) with a selective cutting of infected trees; (4) severely damaged stand (age 30-40 years) with a selective cutting of infected trees. All the stands had been abandoned before the pine wilt disease damage. The understory structure of the severely damaged stand with no protection procedure was similar to that of the lightly damaged stand. Frequent invasion by tree species and acceleration in the growth of understory trees occurred after the dieback in the selective cutting stand. These results suggest that a deficiency in the canopy layer caused by the dieback resulted in low disturbance intensity in the early stages after the dieback, but the selective cutting increased the intensity by the reduction in the understory as well as the canopy layer. The intensity of the disturbance in the selective cutting stands was larger in the younger stand because it had a higher density of selectively cut pine trees. The different stand structure of pine forests occurred after the dieback because the intensity of the disturbance varied as a result of the selective cutting operation and the stand age.

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Development of secondary pine forests after pine wilt disease in western Japan

Cited by 41 publications

References 18 publications

Age and radial growth pattern of four tree species in a subtropical forest of China

Age and radial growth pattern of four tree species in a subtropical forest of China

Seasonal dynamics of dissolved organic carbon, nitrogen and other nutrients in soil of Pinus massoniana stands after pine wilt disease disturbance

Comparison of stand dynamics after dieback caused by pine wilt disease among pine forests with different management regimes in western Japan

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